Appeal No. 2000-1332
Application No. 08/793,242
Yamaguchi, the examiner's primary reference,
discloses a heat exchanger in the form of a condenser 200
(see Figure 7). The condenser includes a pair of open-
ended, cylindrical header pipes 130 and 140, a plurality
of end plugs 15-18 and partitions 71, 72, 75 dividing the
header pipes into separate fluid chambers, and a
plurality of heat exchange tubes 21 extending between the
header pipes and communicating with respective chambers.
Of the manner in which the heat exchanger is produced,
Yamaguchi states that
Plug 16 is first inserted into the interior
of header pipe 130 through the upper opening
thereof, and is then moved by a rod to the lower
end of the header pipe 130. Partitions 71 and
72 are also inserted in header pipe 130 and
moved to their predetermined positions,
respectively. Finally, plug 15 is inserted at
the upper end of header pipe 130. Since the
outer diameter of the plugs and the partitions
is predetermined to be approximately the same as
or slightly less than the inner diameter of the
header pipe, the [plugs and] partitions may be
moved smoothly to their respective positions in
the header pipe. . . . Pressure is applied
through header pipe 130 to each plug and
partition by a press to fix their position in
header pipe 130 after each has been inserted
therein. Partition 75 and plugs 17 and 18 are
inserted and fixed within header pipe 140 in a
5
Page: Previous 1 2 3 4 5 6 7 8 9 10 11 12 13 Next
Last modified: November 3, 2007